LT1461 Micropower Precision Low Dropout Series Voltage Reference Family FeaTuresDescripTion n Trimmed to High Accuracy: 0.04% Max The LT®1461 is a family of low dropout micropower band- n Low Drift: 3ppm/°C Max gap references that combine very high accuracy and low n Low Supply Current: 50µA Max drift with low supply current and high output drive. These n High Output Current: 50mA Min series references use advanced curvature compensation n Low Dropout Voltage: 300mV Max techniques to obtain low temperature coefficient and n Excellent Thermal Regulation trimmed precision thin-film resistors to achieve high n Power Shutdown output accuracy. The LT1461 family draws only 35µA n Thermal Limiting of supply current, making them ideal for low power and n All Parts Guaranteed Functional from –40°C to 125°C portable applications, however their high 50mA output n Voltage Options: 2.5V, 3V, 3.3V, 4.096V and 5V drive makes them suitable for higher power requirements, such as precision regulators. applicaTions In low power applications, a dropout voltage of less than 300mV ensures maximum battery life while maintaining n A/D and D/A Converters full reference performance. Line regulation is nearly im- n Precision Regulators measurable, while the exceedingly good load and ther- n Handheld Instruments mal regulation will not add significantly to system error n Power Supplies budgets. The shutdown feature can be used to switch full load currents and can be used for system power down. Thermal shutdown protects the part from overload condi- tions. The LT1461 is available in 2.5V, 3V, 3.3V 4.096V and 5V options. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Typical applicaTionBasic ConnectionLT1461-2.5 Load Regulation, PDISS = 200mW (VOUT + 0.3V) ≤ VIN ≤ 20V LT1461 VOUT C 0mA IN CL 1µF 2µF VOUT 1461 TA01 20mA VOUT LOAD REG 1mV/DIV 1461 TA02 10ms/DIV 1461fb For more information www.linear.com/LT1461 1 Document Outline Features Applications Typical Application Description Absolute Maximum Ratings Order Information Pin Configuration Available Options Electrical Characteristics Applications Information Simplified Schematic Package Description Revision History Typical Application Related Parts
